- When there are no available Bluetooth devices, we show
"No Bluetooth devices were found nearby" as a preference item after
the scan completes. Update the layout for this Preference item so
that the text is centered and doesn't highlight when touched.
- Fix slow responsiveness on scanning caused by repeated removal of
"No Bluetooth devices were found" preference item on every call to
onBindView().
- If no devices are paired, don't restart the scan on every rotation.
Bug: 5173935
Bug: 5055460
Change-Id: I52fb2d52f315c5e793f08499146842d54c5c3ead
